JPH0657538B2 - Car control equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an opening / closing panel of an automobile trunk or the like, and more particularly to a mechanism for controlling opening / closing of the opening / closing panel with a single switch operated by a driver. Regarding

[Prior Art] A driver-operated mechanism for remotely controlling the operation of a latchable opening / closing panel such as a trunk lid of an automobile is roughly classified into two.
The species are known. One type of mechanism, referred to as a release mechanism, remotely releases the latch to move the open / close panel to the fully open position. The other mechanism is called the pull-down mechanism,
The open / close panel is closed and sealed by remote control. The closing function involves the function of mechanically coupling a latch bolt mounted on the panel to a vertically extending striker or receiving member with the opening / closing panel in a partially closed position.
The sealing function involves pulling the striker back in the vertical direction to bring the opening / closing panel to the completely closed position. The pull-down mechanism can be a reversible motor, and the release mechanism can be a solenoid or a motor.

The pull-down mechanism may be of the type described in Japanese Patent Application No. 64-7582. In this mechanism, a pull-down sequence (pull-down operation) is started by the driver operating a closing switch attached to the passenger compartment or the trunk. The complete closure of the open / close panel is indicated when the motor current exceeds the first threshold value, after which the motor is rotated in reverse to pull the striker back and seal the panel. The completion of the pull-down sequence sealing operation is displayed when the motor current exceeds the second threshold value, and then the motor is deenergized to end the sequence.

The release mechanism is based on General Motors
mounted on vehicles manufactured by ors Corporation) 1
It may be of the type described in the service manual for the 989 Cadillac Seville. In this mechanism, when the driver operates the panel opening switch installed in the passenger compartment, the solenoid coil of this mechanism is urged to release the latch bolt, and the spring device and other similar devices are released to open and close. It is designed to open the panel.

[Structure and Effect of Invention] Compared to the above-mentioned conventional device, the control device of the present invention is characterized in that a single switch means actuated by a driver to control the position of the opening / closing panel, Detecting means for displaying the coupled state or the disengaged state of the latch means, and the pull-down control means actuated in response to the first actuation of the single switch means when the detected means indicates the disengaged state of the latch means. Thus, the opening / closing panel is partially closed and sealed, and when the detecting means indicates the coupled state of the latch means, the release mechanism is operated in response to the second operation of the single switch means to open the opening / closing panel. A logical control whereby the release mechanism is returned to the open position so that the operation of the release mechanism and the operation of the pull-down control means are controlled by a single switch means. And means.

The present invention provides an improved integrated open / close panel controller that allows the release mechanism and pull-down mechanism to be controlled by a single driver actuated switch. If it is necessary to alternate control positions, a single switch may be connected with additional switches in parallel.

When the driver first actuates the switch with the opening and closing panel closed, the release mechanism solenoid or motor indicates that the latch bolt and striker are mechanically coupled. It is activated via the switch. As a result, the latch bolt is disengaged from the striker and the spring or other similar device is released to open the panel.

When the driver first operates the switch (first operation) while the open / close panel is open, the motor of the pull-down mechanism indicates that the latch bolt and the striker are in the disengaged state (uncoupled state). It is energized via a latch switch that is As a result, the striker is extended and the open / close panel is pulled to a partially closed position to mechanically couple the latch bolt and striker. When the switch is operated (second operation) during the closing period of the open / close panel, the pull-down motor reversely rotates to prevent the pull-down sequence, and the spring device and other similar devices are released to open the open / close panel.

When the latch bolt and the striker are mechanically connected,
The motor of the pull-down mechanism reversely rotates and pulls back the striker to seal the open / close panel. When the switch is operated (second operation) during the sealing period of the open / close panel, the solenoid or motor of the release mechanism is displayed via the latch switch, which again indicates the state in which the latch bolt and the striker are mechanically coupled. To prevent the pull-down sequence. As a result, the latch bolt disengages from the striker, releasing the spring device and other similar devices and opening the open / close panel.

[Embodiment] Referring to FIG. 1, an opening / closing panel (for example, a deck lid) 1
0 is attached to the body 12 of the automobile by a pair of hinges 14. The body panel 16 of the vehicle body 12 defines an opening 18 that can be opened and closed by the opening and closing panel 10. A spring (not shown) biases the open / close panel 10 toward the open position of FIG.

The open / close panel 10 can be latched in the closed position by a latch assembly 22 attached to the open / close panel 10. A latch bolt 26 is pivotally attached to the latch assembly 22. The latch bolt 26 is mechanically coupled to a striker or receiving member 28 carried on the body panel 16 to latch and interconnect the open / close panel 10 to the body panel 16. The latch bolt 26 constitutes the first element of the latch mechanism, and the striker 28 constitutes the second element of the latch mechanism. The latch switch (detection means) 25 is the latch assembly 2
It is attached to 2 and has a latch bolt 26 and a striker 28.
It electrically indicates whether and are mechanically coupled. Such a display is used for controlling the opening / closing panel 10 described later.

The latch assembly 22 has a latch bolt spring (not shown) that biases the latch bolt 26 toward the released position (non-latched position). When the opening / closing panel 10 moves toward the closed position, the latch bolt 26 engages with the striker 28,
Pivot to a latched position for striker 28. The latch assembly 22 has a detent lever (not shown) that maintains the latch bolt 26 in a latched position with respect to the striker 28.

Latch assembly 22 also has a key actuated locking cylinder 30 that is rotatable when a properly encoded key is inserted. As the locking cylinder rotates, the detent lever pivots away from the latch bolt 26 and the latch bolt spring returns the latch bolt to the released position, thereby disengaging the latch assembly 22 from the striker 28 and opening and closing the panel spring. The opening / closing panel 10 can be moved to the open position.

A similar (solenoid operated) release mechanism 23 attached to the latch assembly 22 and associated with the latch bolt 26 can perform a similar function. Latch bolt 26 and striker 2
When mechanically coupled to 8, the release mechanism 23 is biased to actuate the detent lever described above, releasing the latch bolt 26 from the striker 28.

Referring to FIG. 1, the opening / closing panel 10 is pulled down (pulled down), the latch assembly 22 is latched to the striker 28, and the striker 28 is also pulled down to seal the opening / closing panel 10 in the completely closed position. A motor type drive unit 34 is provided. As clearly shown in FIG. 2, the motorized drive unit 34 is used in the automobile body 1
It is mounted on the second side wall structure 36 and has a motor 38 which can reversibly rotate the cable drum 40 (Fig. 3). Motor type drive unit 3
4 and the motor 38 constitute pull-down control means. The cable drum 40 has a shaft 42 and a housing 42.
It is rotatably mounted inside. The drive pinion 46 is connected to the motor 38 via a suitable gear transmission,
It meshes with teeth 48 provided inside the cable drum 40.

As shown in FIGS. 1-3, the cable 52 is connected to the offset arm 53 of the hinge 14, and the cable drum 40
Surrounding the pulley 54. The inner end of the cable 52 is anchored to the cable drum 40, and the cable 52 is wound around when the cable drum rotates. In particular, when the cable drum 40 rotates counterclockwise (FIG. 2), the cable 52 is wound and the opening / closing panel 10 is pulled down toward the closed position to perform the closing function.

The motorized drive unit 34 also includes a second pulley 58 of the cable drum 40 having a cable 60 attached thereto. Second
As clearly shown in the figure, the cable 60 is wound around the cable drum 40 in a direction opposite to the winding direction of the cable 52, and therefore, when the cable drum rotates in the winding (pulling back) direction of the cable 52, the cable 60 is rotated. Is unrolled. Cable 60 is striker 2
8 through a sheath 62 that extends to a pull-down mechanism 64.

The pull-down mechanism 64 for the striker 28 is the first,
Shown in Figs. The pull-down mechanism 64 has a housing 68 bolted to the body panel 16. The striker 28 is made of a bent rod and is located in a slot 72 formed in a flange portion 74 of the housing 68. The lowest portion of the striker 28 is retained in a shoe 78, which is slidably housed between the housing 68 and the flange portion 74,
8 is attached so that it can be moved up and down. A U-shaped track 82 is mounted on the housing 68 and has upstanding legs 84, 86 for pivotally receiving a slide member 90. As clearly shown in FIG. 5, the slide member 90 has a cam slot 92, which houses the lowermost leg 94 of the striker 28,
The leg portion 94 constitutes a cam follower that moves in the cam slot 92 of the slide member 90. U-shaped track 82
The upright legs 84, 86 of the respective have slots 98, 100 (extending in the vertical direction) which house the shoes 78 and define the vertical up and down movement path of the striker 28.

As clearly shown in FIG. 5, when the cable drum 40 is rotated clockwise (FIG. 2), the cable 60 is pulled back and the slide member 90 is moved to the left (FIG. 5).
It is attached to the slide member 90 so as to be pulled to. The compression coil spring 95 has one end seated on the slide member 90 and the other end seated on the stop 96 of the housing 68, and biases the slide member 90 to the right (FIG. 5).

The cam slot 92 has a central inclined portion 99, a (horizontal) dwell portion 101 located at the upper end of the inclined portion, and a (horizontal) dwell portion 102 located at the lower end of the central inclined portion 99.
Have and. The compression coil spring 95 has a cam slot 92.
The slide member 90 is normally positioned at the right position so as to establish the striker 28 at the position where the dwell portion 101 of FIG.

A driver actuated switch (single switch means) 218 (Fig. 6a) when the open / close panel 10 is in the closed position.
When is temporarily pushed, the control circuit of FIGS. 6a and 6b is operated via the latch switch 25, which electrically indicates that the latch bolt 26 and the striker 28 are connected. , Energizes the solenoid of the release mechanism 23. As a result, the release mechanism 23 releases the latch bolt 26 from the striker 28, and the opening / closing panel 1 is opened by the panel spring.
0 is opened.

When the open / close panel 10 is open,
When the switch 18 is pushed, the latch switch 25 indicates the released state of the latch bolt 26 and the striker 28, so that the motor 38 is urged to rotate the cable drum 40 counterclockwise. Therefore, a momentary current flows into the motor 38, and this current sharply decreases at the start of rotation of the motor 38, as indicated by 120 in FIG. When the motor 38 starts rotating, the cable drum 40 starts pulling back the cable 52 to start the closing movement of the opening / closing panel 10 and unwinds the cable 60 to start the vertical extension movement of the striker 28. During this load pickup phase, the motor current rises as shown at 122 in FIG. 7, and as the motor speed increases and stabilizes,
It descends to a relatively stable level.

Pressing switch 218 again during the panel closing movement (second actuation) terminates the pulldown sequence by energizing motor 38 to rotate cable drum 40 clockwise. The cable 52 is unwound by the bias of the motor, and the open / close panel 10 is opened by the panel spring.

When the latch assembly 22 engages with the striker 28 due to the closing movement of the opening / closing panel 10, the latch bolt 26 rotates and latches with the striker 28, thereby coupling the opening / closing panel 10 to the striker 28. Therefore, the mechanical load is significantly increased, and the motor current is rapidly increased as shown by 124 in FIG. As described below with respect to FIGS. 6a-6b, the controller of the present invention senses the increased current associated with latching and interrupts the motor current as shown at 126 in FIG.

After a short period indicated by 128 in FIG. 7, the control device urges the motor 38 in the clockwise direction to reverse the rotation direction of the cable drum 40. Therefore, in FIG.
A second momentary current, shown at 0, flows into the motor 38 and this current drops sharply as the motor 38 begins to rotate. When the motor 38 starts to rotate, the cable 52 loosens, the cable drum 40 starts to pull back the cable 60, and the striker 28 is pulled back vertically to seal the opening / closing panel 10 to the body panel 16. The motor current rises as the load is picked up as shown at 132 in FIG. 7 and then drops to a relatively stable level as the motor speed stabilizes.

When the switch 218 is pressed again during the panel sealing movement (second actuation), the latch bolt 26 and the striker 28 are pressed.
The pull-down sequence is stopped by energizing the release mechanism 23 via the latch switch 25 which again indicates that and are in the mechanically coupled state. By the biasing of the release mechanism, the latch bolt 26 is released from the striker 28, and the opening / closing panel 10 is restarted by the panel spring.

When the slide member 90 reaches the leftmost position in FIG. 5,
The dwell portion 102 of the cam slot 92 is the striker 28.
The cam follower (lowermost leg portion 94) is engaged. At the end position of such a stroke, the mechanical load applied to the motor 38 is significantly increased, and as a result, the motor current is also increased by
As shown at 134 in the figure, it rises sharply. No. 6a-6
As will be described below with reference to Figure b, the controller of the present invention detects such rising current and interrupts the motor current as shown at 136 in Figure 7.

A control device for carrying out the control according to the invention is shown in FIGS. 6a and 6b. FIG. 6a shows the whole circuit, and FIG. 6b shows the details of the logic sequence circuit of FIG. 6a.

Referring particularly to FIG. 6a, the relay switching circuit 1
40 is connected to terminals 164 and 166 of the motor. The relay switching circuit 140 includes a pair of (single pole, double throw) relays 142, 144 that are controllable to energize the motor 38 in both directions with a direct current from a typical automobile battery 146. Each relay 142,
144 is a pair of contacts 148, 150; 152, 154
And a switch arm 156 that is spring biased to engage the lower contacts 150, 154 as shown in FIG. 6a.
158 and coils 160, 162 that can be biased to overcome the spring bias to move the switch arms 156, 158 to engage the upper contacts 148, 152.

The switch arm 156 of the relay 142 is connected to the motor terminal 16
4 and the switch arm 158 of the relay 144 is connected to the motor terminal 166. Upper contacts 148, 1
52 is connected to the positive terminal of the battery 146 via line 168. The lower contacts 150, 154 are grounded via a current shunt resistor 170 and connected to the negative terminal of the battery 146.

In the normal state or the rest state, the relays 142, 14
4 is a motor terminal 164 via a current shunt resistor 170,
166 is grounded. When it is desired to rotate the motor 38 counterclockwise, the coil 160 is biased to engage the switch arm 156 with the upper contact 148. This allows
A first motor energization circuit is completed that includes battery 146, contacts 148, 154, and current shunt resistor 170. When it is desired to rotate the motor 38 clockwise, the coil 162 is biased to engage the switch arm 158 with the upper contact 152. This allows the battery 146
A second motor energizing circuit is completed that includes the contacts 152, 150 and the current shunt resistor 170.

When the coil 160 or 162 is de-energized, the motor 3
Circuit 8 is temporarily open circuit and MOV 172 suppresses transient high voltages associated with motor field energy reduction. When the respective switch arms 156, 158 reach the rest position, the motor terminals 164, 166 are shorted and inductive energy flows through the motor windings.

One terminal of each coil 160, 162 is a diode 18
8 is connected to the positive terminal of the battery 146, and the other terminals of the coils 160 and 162 are connected to the lines 192 and 194.
Connected to a logic sequence circuit 190, which selectively grounds lines 192, 194 and energizes respective coils 160, 162. In performing such control, logic sequence circuit 190 responds to temporary ground on line 196 and motor current limit signals on lines 198, 200. Line 198, 200
The current limit signal above is generated by closing the closure detection circuit 202 and the seal detection circuit 204, respectively.
The logic sequence circuit 190 is shown in detail in FIG. 6b.

The operating voltage Vcc for the logic sequence circuit 190, the closure detection circuit 202 and the seal detection circuit 204 is equal to the connection 2
Powered by battery 146 via wake-up circuit 206 at 08. Connection part 208 is diode 1
88, resistor 210 and emitter of transistor 212
It is connected to the battery 146 via a collector circuit. Zener diode 214 prevents transistor 212 from entering a transient overvoltage condition, and resistor 216 biases transistor 212 into a normally non-conducting state.

If the switch 218 is mounted in the passenger compartment of the vehicle and the operator wants to open / close the opening / closing panel 10, the driver may temporarily press the switch. When this switch is pressed, the switch 218 connects the positive terminal voltage of the battery 146 to the terminal 400 via the ordinary ignition switch 402. If necessary, open / close the open / close panel 10 using the terminal 4
00 and battery 146 may be initiated by temporarily pressing another switch 404 directly connected. If desired, another switch 404 may be mounted on the trunk of the vehicle and the driver may press this switch to initiate closure of the open / close panel 10. Alternatively, another switch 404 may comprise the contact of a relay remote controlled by a keyless transceiver.

Reference numeral 406 designates two pairs of contacts 414, 416 and 41.
8, 420 and a pair of switch arms 422, 424 that are spring biased to engage their respective upper contacts 414, 418 as shown in FIG. 6a, and the switch arms 422, 424 to overcome the spring bias. Lower contact 416,
Coil 4 biased to engage 420 respectively
26 and 26 (bipolar, double throw) relay. Resistor 428 is connected in parallel with coil 426 to dissipate the inductive energy stored in coil 426 during castration.

The coil 426 of relay 406 causes switch 218 or 404 to close when switch arm 408 of latch switch 25 is in the panel closed position (C).
Be energized. In this case, the switch arm 422 has the terminal 4
00 to the ungrounded terminal of solenoid coil 412 of the release mechanism and switch arm 424 connects to contact 420
Connect to ground. Therefore, the switch 218
Alternatively, as long as the coil 404 is pressed, the coil is kept urged, the release mechanism 23 is operated, the latch bolt 26 is disengaged from the striker 28, and the opening / closing panel 10 is opened by the panel spring.

When the switch arm 408 of the latch switch 25 is in the panel open position (O), actuating the switch 218 or 404 does not energize the coil 426 and instead the terminal 400 causes the switch arm 422, the contact 414,
It is connected to the terminal 430 via the diode 432 and the resistor 434. Terminal 430 is connected to the base terminal of transistor 436 and grounds terminal 438 through the emitter-collector circuit of transistor 436 and switch arm 408 of latch switch 25 when switch 218 or 404 is energized. The relay 406 and the transistor 436 form a logic control means. As described above, this logic control means starts opening / closing of the open / close panel 10. Capacitor 440 and diode 444 act as a shunt for transients, and resistor 442 keeps transistor 436 normally non-conductive.

Terminal 438 is connected via resistor 220 and diode 221 to the base of transistor 212 (in a wake-up circuit) and energizes transistor 212 to generate operating voltage Vcc at connection 208 when switch 218 or 404 is pressed. Bias to. Sixth
As will be described below in connection with b, the logic sequence circuit 190 senses the first ON state of the operating voltage Vcc and at that time maintains the line 196 at substantially ground level to latch the transistor 212 into the conductive state. Works.

When the pulldown sequence is complete, the logic sequence circuit 190 removes the bias and the transistor 212 (of the wakeup circuit) returns to its normal non-conducting state, as indicated by the seal detect circuit 204. The filter capacitor 222 prevents a sudden loss of the operating voltage Vcc during the latch operation and at the end of the pull-down sequence. The line 225 is a switch 218 for driver-commanded reverse / reverse of a pull-down sequence to be described later.
And a closure detection circuit 202. The diodes 221 and 223 are connected to the line 196 and the closing detection circuit 2
02 are isolated from each other.

A voltage reference value corresponding to a motor current of about 10 amps (A) is obtained at connection 230 by voltage divider 232 and supplied via resistor 236 to the negative input of comparator 234 (of the closure sensing circuit). . A voltage reference value corresponding to a motor current of about 5 amps is obtained at the connection 238 by the voltage divider 240 and via the RC timing circuit with the resistor 243 and the capacitor 244 of the comparator 242 (of the seal detection circuit). It is supplied to the negative input.
In either case, the voltage reference value is the current shunt resistance 1
Compared to the true motor current minus the voltage across 70, this voltage is passed through resistors 246, 248 to comparator 23.
4, 242 are respectively supplied to the positive input sections. Capacitor 224 acts as a shunt for any high transient voltage. As will be described later in connection with FIG. 6b, the voltage divider 2
The reference voltage obtained by 40 is overridden by the logic sequence circuit 190 via the line 245 during the closing operation of the pull-down sequence.

The seal detection circuit 204 further includes a feedback resistor 25.
8 and a pull-up resistor 262 and an inverter 260 connecting the comparator 242 to the (output) line 200. If the true motor current is less than the 5 amperes reference value defined by voltage divider 240, the output of the comparator is at a low potential and inverter 260 drives (output) line 200 to a high potential. If the true motor current exceeds the reference value of 5 amps, the output of the comparator will be at a high potential and the inverter 260 will be in the (output) line 200.
Is brought to a low potential state so that it can be signaled that the reference value of 5 amps has been exceeded. The capacitor 244 is a resistor 2 for maintaining the output of the comparator at a low potential during the load pick-up phase of the panel seal and the current inflow phase.
An RC timing circuit having 43 is formed.

The closure detection circuit 202 further includes a feedback circuit 250.
And pull-up resistor 254 and comparator 234 (output)
An inverter 252 connected to line 198.
If the true motor current is below the 10 ampere reference value defined by voltage divider 232, the output of the comparator is at a logic "0" potential (low state) and inverter 252
Drives (output) line 198 to a logic "1" potential (high state). When the true motor current exceeds the reference value of 10 amps, the output of the comparator goes high and the inverter 252 sets the (output) line 198 low to signal that the reference value of 10 amps has been exceeded. Let me know.

The output of the comparator 234 is kept at a low potential by the comparator 265 for a predetermined time delay after the operating voltage Vcc is first applied. Capacitor 269 is charged through resistor 268 and divider resistors 266, 267 provide a reference value to compare with the capacitor voltage. When the capacitor voltage exceeds the reference voltage, the comparator 265 causes the comparator 2
The output of 34 is canceled. As will be described below, the time delay described above effectively disables the closure detection circuit 202 during the initial motor current inflow phase and the load pickup phase of the closure operation of the pull-down sequence.

Referring to the logic sequence circuit 190 of FIG. 6b, energization control for the relay coil is implemented by a pair of (logic) flip-flop circuits 270,272. When the operating voltage Vcc is first supplied to start the closing operation of the pull-down sequence, the flip-flop circuit 270
Energizes coil 160 to exceed the 5 amp seal current reference. Flip-flop circuit 272 responds to a current limit signal on (output) lines 198, 200 to terminate the closing operation of the pull-down sequence and control the operation of the sealing operation.

The flip-flop circuit 270 is a pair of cross-coupled N
It has AND gates 274 and 276. The Q output at connection 278 is connected to the (output) line 192 via an inverter 280 to control the closing bias of the relay coil 160. During the energization of coil 160, diode 282 drives the output of inverter 280 on line 19.
Connect to 6. The output at connection 284 is connected through resistor 286 to the base of transistor 288 which is activated when energized to increase the seal sensing circuit reference from 5 amps to the closure reference (10 The reference value of this seal detection circuit is disabled by increasing it to a value in excess of amperes.

The RC timing circuit connection 290 with the resistor 292 and the capacitor 294 provides the NAND gates 274, 2 to perform the functions described above during the initial supply of the operating voltage Vcc.
NAND gate 274 to ensure the initial state of 76
Connected as an input to. Resistor 277 and diode 2
79 cooperates with the capacitor 275 to energize the coil 160 when the motor current does not reach the closing current reference value within a predetermined period as described later. An RC timing circuit having a capacitor 296 and a resistor 298 couples flip-flop circuits 270, 272, as described below, to provide a controlled dwell time between the closing and sealing operations of the pulldown sequence.

The flip-flop circuit 272 is a pair of cross-coupled N
It also has AND gates 300 and 302. Connection part 304
The Q output at is connected to the (output) line 194 via the buffer amplifier 306 to control the energization of the (seal) coil 162 and also controls the transition between the closing and sealing operations of the pull-down sequence. Resistance 298
And a NAND gate 276 via a capacitor 296. The output at connection 310 is connected as an input to an inverter 312, which provides a latch signal on line 196 for wake-up circuit 206 during the energization of coil 162.

The operation of the flip-flop circuit 272 is (output) line 2
Controlled by the seal and closure current limit signals on 00, 198. The line 200 is connected to N through the diode 316.
Connected as an input to AND gate 300, pull-up resistor 318 typically provides a high input level. Resistance 32
The RC timing circuit with 0 and capacitor 322 ensures the initial set state of the flip-flop circuit 272 when the operating voltage Vcc is first applied, regardless of the state of the seal detection circuit 204. The line 198 is connected to the NAND gate 3 through the capacitor 328 and the resistor 332.
02 is connected as an input. The resistors 329 and 330 cooperate with the capacitor 328 to switch 2 as described later.
Separate 18,404.

Next, the operation of the control circuit of the present invention will be described assuming that the open / close panel 10 is open. In this case, the latch switch 25 is in the position shown in Figure 6a and the transistor 436 is energized when the switch 218 or 404 is temporarily closed. As a result, the transistor 212 (of the wake-up circuit) is energized to generate the operating voltage Vcc at the connection 208. At this point, the Q outputs of the flip-flop circuits 270 and 272 become high potential,
(1) Latch the transistor 212 energized via the inverter 252, (2) energize the coil 160 (for closing) via the inverter 280, and (3) set the reference value of the sealing current via the transistor 288. Let it cross
(4) The capacitor 296 is charged to a predetermined polarity. In such a state, the motor 38 is urged in the direction to start pulling the open / close panel 10 toward the closed position. During initial current inrush and load pickup, comparator 265 overrides comparator 234 to prevent false close indication on line 198.

Here, if the driver wants to cancel the closing sequence of the open / close panel 10, the switch 218 or 404 is temporarily pressed again to re-energize the transistor 436, and the line 198 is immediately grounded via the diode 223. Set to the potential state. A negative voltage is supplied to the NAND gate 302 via the capacitor 328 to change the state of the flip-flop circuit 272. At this point, coil 162 is energized via buffer amplifier 306 and terminal 16
4, 166 is connected to the positive terminal of the battery 146 to de-energize the motor 38 and the capacitor 296 causes the resistance 2
Begin to discharge via 98. In addition, the inverter 312 holds the line 196 in a low potential state, so that the operating voltage Vcc is
To maintain.

When the capacitor 296 is fully discharged, the state of the flip-flop circuit 270 changes and the (closing) coil 16
Castrate 0. As a result, the motor 38 is urged by the panel spring in a direction in which the open / close panel 10 can be returned to the fully open position. Motor current inflow and load pickup current are overridden by charging capacitor 244, which slowly discharges through resistors 241 and 243. However, when the cable 52 is fully extended, the cam follower portion of the striker 28 reaches the end of the stroke of the cam slot 92, the seal sensing circuit output on line 200 decreases to a logic "0" potential, and the flip flop circuit. 272 is returned to the setting state. This causes the coil 162 to be de-energized and the transistor 212 (of the wake-up circuit) 212
Release the latch to complete the abort sequence.

However, during the pull-down sequence, the switch 28
If 1,404 remain open, the open / close panel 10 continues the closing motion until the striker 28 and the latch bolt 26 are mechanically coupled. In this case, latch switch 2
The switch arm 408 of No. 5 engages the C terminal as described above, indicating the closure of the open / close panel 10. This movement of the switch arm releases the emitter of transistor 436 from ground and relay 406 to ground.

When the latch bolt 26 and the striker 28 are mechanically coupled, the increased load causes the motor current to drop to 1
Increase as shown at 24. When the motor current exceeds the reference value for the 10 amp closure detection circuit, the output of the inverter 252 on the (feedback) line 198 is reduced and the output state of the flip-flop circuit 272 is reversed. At this time, the (seal) coil 162 is energized through the buffer amplifier 306 and the capacitor 296 begins to discharge through the resistor 298 as described above in connection with the second actuation of the switch 212 or 404. However, in this case, the striker 28 retracts in the vertical direction and pulls the opening / closing panel 10 toward the sealing position.

When the control circuit is activated by the battery 146 in a substantially discharged state, or the cable 52 causes the motor 38 to
, The 10 ampere closure reference value defined by voltage divider 232 is not exceeded. In this case, the capacitor 275 is sufficiently charged via the resistor 277, and the state of the flip-flop circuit 270 is independently changed. If the striker 28 and the latch bolt 26 are coupled, a sequence of sealing operations is performed, and if the striker 28 and the latch bolt 26 are not coupled, the opening and closing panel 10 is as described above in relation to the stop function. , Return to the fully open position. In the mechanization of the circuit shown,
It has been found that an RC time constant of about 10 seconds is satisfactory.

As mentioned above, the output of the seal sensing circuit on line 200 is held high by the capacitor 244 during the current inflow and load pick-up phases of the sequence, after which the motor current is defined by the voltage divider 240. The measured value is compared with the reference value of 5 amps. When the cam follower portion of striker 28 reaches the end of the stroke in cam slot 92, the motor current increases above the 5 amps reference current as shown at 134 in FIG. At this point, the comparator 242 changes state and the inverter 260
Output drops to a low potential and flip-flop circuit 272
The state of can't be changed. As a result, the (seal) coil 162 is energized, releasing the latched state of the transistor 212 (of the wakeup circuit) and completing the pulldown sequence.

When the switch 218 or 404 is closed and the latch bolt 26 and the striker 28 are coupled so as to open the opening / closing panel 10, the coil 426 is operated via the switch arm 408. As a result, the switch arm 422,
The state of 424 is changed so that the solenoid coil 412 of the release mechanism is biased, the latch bolt 26 is separated from the striker 28, the coil 426 is newly grounded, and the open / close panel 10 is returned to the fully open position by the panel spring. To Due to this new ground condition, switch 2
18 and 404 are closed, the biasing state of the coil 426 is maintained during the operation period, and the switch arm 4 of the latch switch 25 is
If the 08 is disconnected from the C terminal, the transistor 4
Prevents improper operation of 36. Meanwhile, striker 28
The pullback movement of the cable 52 and the extension movement of the cable 52 continue, and the cable 52 is in the fully extended state, and the cam follower portion of the striker 28 reaches the end of the movement stroke of the cam slot 92. At this point, the motor current increases above the 5 amp seal reference current, altering the state of comparator 242 and flip-flop circuit 272 as described above, deenergizing coil 162 and deenergizing motor 38.

If the operator wishes to close the open / close panel 10 completely, the driver actuates the switch 218 or 404 and, as described above in connection with the closing action of the switch 218 or 404 during the sealing operation of the pull-down sequence, the latch switch 25.
The coil 426 is energized via the switch arm 408 of However, in this case, the cable 52 is completely extended, and the bias of the motor 38 (for pull-down) does not occur.

From the above, it can be seen that the control circuit of the present invention provides inherent obstacle detection. For example, if the open / close panel 10 encounters an obstacle during the operation of the closing operation of the pull-down sequence, the load will increase causing the motor current to increase above the reference value of 10 amps defined by the voltage divider 232. As a result, the motor 38 rotates in the reverse direction as when the striker 28 and the latch bolt 26 are connected. Therefore, the cable 52 extends and the open / close panel 10
Can be raised to its normally open position. Then
Press switch 218 or 404 to initiate a new pulldown sequence as described above.

With the method described above, the controller of the present invention provides a fully integrated panel control that can be remotely operated from multiple locations if desired.

[Brief description of drawings]

1 is a perspective view of a vehicle body incorporating a control device and a motorized pull-down mechanism according to the present invention, FIG. 2 is a side elevational view of the motorized drive unit of FIG. 1, and FIG. 3 is FIG. 3 is a sectional view taken along line 3-3, FIG. 4 is a sectional view taken along line 4-4 of FIG. 1, FIG. 5 is an elevational view taken along line 5-5 of FIG. 4, FIG. FIG. 6b is a circuit diagram of the control device of FIG. 1, and FIG. 7 is a graph showing a current supplied to the electric drive unit of FIG. 1 in a typical pull-down sequence. Explanation of reference numerals 10: open / close panel, 12: body 16: body panel, 23: release mechanism 25: latch switch, 26: latch bolt 28: striker 34: motor type drive unit, 38: motor 202: closure detection circuit 206: wakeup Circuit 218: Switch, 406: Relay 436: Transistor

Claims (2)

[Claims] 1. A body (12) having an opening and closing panel (10) hinged for movement between an open position and a closed position with respect to a compartment such as a trunk defined by the body panel (16) and opening and closing. It has a first element (26) fixed to one of the panel (10) and the body panel (16) and a second element (28) removably attached to the other of the open / close panel (10) and the body panel (16). The latch mechanism and the first and second elements (26, 2) of the latch mechanism.
8) is operated so as to be detached, and the opening / closing panel (1
0) is a control device for a motor vehicle having a release mechanism (23) for returning to the open position, the mechanical connection between the first and second elements (26, 28) of the latch mechanism. Actuated to energize a motor (38) to continuously move the opening and closing panel (10) to a partially closed position, and then in a direction of movement of the opening and closing panel (10) to seal the opening and closing panel (10). A control device having pull-down control means (34, 38) for actuating to pull back the second element (28) of the latch mechanism, wherein the control device is actuated by a driver to control the position of the opening / closing panel (10). Single switch means (218)
A detection means (25) for displaying a connection state or a separation state of the latch means, and the single switch means (218) when the detection means (25) displays the separation state of the latch means. )
In response to the first operation of the pull-down control means (34,
38) by operating the opening / closing panel (10)
Is partially closed and sealed, and the release mechanism (25) is responsive to a second actuation of the single switch means (218) when the sensing means (25) indicates the latched state of the latch means. 23) is operated to operate the opening / closing panel (10)
By releasing and returning to the open position,
The operation of the release mechanism (23) and the operation of the pull-down control means (34, 38) are controlled by the single switch means (2).
18) Logic control means (40)
6, 436), and a control device. 2. The control device according to claim 1, wherein the pull-down control means supplies a forward current to the motor (38) to move the open / close panel (10) toward the partially closed position. First control means (20) for supplying
6) and the first and second elements (26, 28) are mechanically coupled to shut off the forward current,
A second control means (202) for supplying a reverse current to the motor until a threshold value indicating a complete pullback of the element (28) is exceeded, and thereafter shutting off all current to the motor. The logic control means is responsive to a second actuation of the single switch means (218) during actuation of the pull-down control means, prior to the coupling of the first and second elements of the latch means. Starts the operation of the second control means to return the open / close panel (10) to the open position, and after the coupling of the first and second elements of the latch mechanism, the release mechanism (23). Control means for activating the opening / closing panel to return to the open position to prevent closing / sealing of the opening / closing panel.